回灌技术在天津市海绵城市建设中的应用研究
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摘要
针对天津市城区浅部地层透水性较差,常规海绵城市建设措施难以快速将雨水自然消纳的问题,结合天津市水资源不足、地面沉降突出的现状,创造性的提出将回灌技术应用于海绵城市建设中,通过雨水回灌提高天津市区降雨的就地消纳和利用率,使原本进入咸水层的雨水转化为地下资源。以天津海绵城市建设某示范片区为例,建立了研究区雨水回灌的数值模拟模型,应用数值模型分别对回灌井加压和不加压条件下的可回灌量进行计算,分析了在天津市开展雨水回灌的可行性,并依据雨水回灌可注水量的计算结果,反推回灌井的井径,为工程施工提供依据。
In view of the poor permeability of the shallow stratum in Tianjin urban area and the difficulty of natural absorption of rainwater by conventional construction measures, combined with the present situation of insufficient water resources and prominent land subsidence in Tianjin, this paper creatively puts forward the application of recharge technology in the construction of sponge cities, then improves the rainfall of Tianjin urban area and transform the rainwater into underground water resources by rainwater recharge. Taking a demonstration area of Tianjin Sponge City as an example, this paper establishes a numerical simulation model of rainwater recharge in the study area, calculates the rechargeable quantity of the rechargeable well under the conditions of pressure and non-pressure by using the numerical model, analyzes the feasibility of developing rainwater recharge in Tianjin, and backstepping the caliper of recharge well based on the calculation results of water injection rate of rainwater recharge, this result can provide basis for engineering construction.
In view of the poor permeability of the shallow stratum in Tianjin urban area and the difficulty of natural absorption of rainwater by conventional construction measures, combined with the present situation of insufficient water resources and prominent land subsidence in Tianjin, this paper creatively puts forward the application of recharge technology in the construction of sponge cities, then improves the rainfall of Tianjin urban area and transform the rainwater into underground water resources by rainwater recharge. Taking a demonstration area of Tianjin Sponge City as an example, this paper establishes a numerical simulation model of rainwater recharge in the study area, calculates the rechargeable quantity of the rechargeable well under the conditions of pressure and non-pressure by using the numerical model, analyzes the feasibility of developing rainwater recharge in Tianjin, and backstepping the caliper of recharge well based on the calculation results of water injection rate of rainwater recharge, this result can provide basis for engineering construction.
引文
[1]李宇超.海绵城市建设的理论与实践[D].西安:西北农林科技大学.2016.
[2]李怀正,白月华,邢绍文.雨水回灌地下的必要性和可行性[J].中国给水排水.2002.18(4):29-30.
[3]吴铁钧.天津市地质环境图集[M].北京:地质出版社.2004.
[4]刘宝山.城市小区雨水回用的研究[D].天津:天津大学.2008.
[5]王广周,高建恩.雨水集蓄利用中的水质问题及对策[J].灌溉排水学报.2008.27(4):119-121.
[6]王新亮.城市小区雨水、杂排水处理及回用研究[D].天津:天津大学.2008.
[7]田宇.天津城区雨水利用的前景分析[J].环境科学与技术.2012.35(3):1-3.
[8]邹旭华.利用城市雨水回灌地下水防治地面沉降技术方法探讨[J].上海地质.2009.2:27-29.
[9]章宏亮.城市雨水回灌技术试验研究[D].西安:西安理工大学.2006.
[10]赵珍,李贵仁.基于基坑降水优化设计的地面沉降数值模拟[J].地下水.2014.36(4):43-45.
[11]李贵仁,赵珍,陈植华.复杂岩溶矿区疏干条件下的地下水数值模拟—以福建省马坑铁矿为例[J].中国岩溶.2012.31(4):382-387.
[12]杨建民,孟凡宪,李梦洋.天津地区含水层类型判别与参数分析[J].地震工程学报.2015.37(1):74-81.
[13]卢磊.雨水蓄留渗透技术在天津地区的应用研究[D].天津:河北工业大学.2010.
[14]王淏阳.天津市雨水利用及工程决策分析[D].天津:天津大学.2012.
[15]允爽.生活小区雨水利用与雨水管网模拟[D].天津:天津大学.2010.
[2]李怀正,白月华,邢绍文.雨水回灌地下的必要性和可行性[J].中国给水排水.2002.18(4):29-30.
[3]吴铁钧.天津市地质环境图集[M].北京:地质出版社.2004.
[4]刘宝山.城市小区雨水回用的研究[D].天津:天津大学.2008.
[5]王广周,高建恩.雨水集蓄利用中的水质问题及对策[J].灌溉排水学报.2008.27(4):119-121.
[6]王新亮.城市小区雨水、杂排水处理及回用研究[D].天津:天津大学.2008.
[7]田宇.天津城区雨水利用的前景分析[J].环境科学与技术.2012.35(3):1-3.
[8]邹旭华.利用城市雨水回灌地下水防治地面沉降技术方法探讨[J].上海地质.2009.2:27-29.
[9]章宏亮.城市雨水回灌技术试验研究[D].西安:西安理工大学.2006.
[10]赵珍,李贵仁.基于基坑降水优化设计的地面沉降数值模拟[J].地下水.2014.36(4):43-45.
[11]李贵仁,赵珍,陈植华.复杂岩溶矿区疏干条件下的地下水数值模拟—以福建省马坑铁矿为例[J].中国岩溶.2012.31(4):382-387.
[12]杨建民,孟凡宪,李梦洋.天津地区含水层类型判别与参数分析[J].地震工程学报.2015.37(1):74-81.
[13]卢磊.雨水蓄留渗透技术在天津地区的应用研究[D].天津:河北工业大学.2010.
[14]王淏阳.天津市雨水利用及工程决策分析[D].天津:天津大学.2012.
[15]允爽.生活小区雨水利用与雨水管网模拟[D].天津:天津大学.2010.